FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2388409870> ?p ?o ?g. }

• W2388409870 abstract "The present study focused attention on some rocks from the Mooirivier Complex in the Rehoboth Basement Inlier. Migmatites and associated rocks in the Rehoboth area were first described and mapped as “Mixed Rocks” by De Kock in 1934. In 1966 De Waal interpreted Piksteel granodiorites, streaked granodiorites and migmatitic gneisses of the Nauchas area as the products of granodioritisation of Marienhof sedimentary rocks. Malling (1978) included all the migmatites and migmatitic gneisses occurring between Ubib 396 and Piksteel 209 in his “Swartfontein Formation”, which he found to be intruded by Weener tonalite and Gamsberg granite. SACS (1980) introduced a new stratigraphic classification involving the subdivision of the “Archaean Complex” into several successions of which the oldest is the Mooirivier Complex. The latter contains the migmatitic gneisses, amphibolites and some quartzites and schists occurring in the Rehoboth district and in the south-western part of the Windhoek District as well as outcrops of the same lithologies in the area of Mooirivier 160 and Neuhof 100 in the northern part of the Maltahohe district. Generally the rocks of the Mooirivier Complex occur as large xenoliths in granodiorite and granite but also as continuous outcrops of considerable extent (Schalk and Germs, 1975). Such large outcrops of the Mooirivier Complex are always intruded by granites, granodiorites and various basic rocks of Mokolian age. The Mooirivier Complex is unconformably overlain by the Neuhof Formation in the area of Mooirivier 160 and Neuhof 100. Gneisses of the Mooirivier Complex, possibly thrusted from the south (Schalk, pers. comm., 1987), are in tectonic contact with the Elim Formation on Alberta 175. In the same area the Gaub Valley Formation tectonically overlies the Mooirivier Complex (SchulzeHulbe, 1975). The overall span of radiometric ages determined on Mokolian igneous rocks from the Rehoboth Basement Inlier ranges between 821 Ma (Stoessel and Ziegler, 1989) and 1871 Ma (Seifert, 1986). A minimum age of 1730 Ma is estimated for the Mooirivier Complex by Schalk (pers. comm., 1987) based on whole-rock Rb-Sr determinations of the intrusive Naub diorite by Malling (1978). A K-Ar age for a muscovite from a “pegmatite in pegmatitic (migmatitic?) gneisses just south of the Naukluft mountains” yielded an age of 1158 ± 35 Ma (Ahrendt et al, 1977) and is therefore indicative of the large time span during which the Mooirivier Complex was intruded by various magmatic rocks. The southern part of the Mooirivier Complex, which is intensely intruded by granites, consists mainly of partly migmatised banded gneisses, amphibolites, amphibole schists, sericite quartzites, garnetiferous mica schists, mica-rich granite gneisses and severely altered basic dykes. North-north-west and north-east trending fold structures are often observed within less altered metasedimentary rocks (Schalk, pers. comm., 1987). In the area of the Spreetshoogte Pass, the northern part of the Mooirivier Complex is represented mainly by a succession of banded quartzite, porphyroblastic plagioclase-biotite schist, foliated amphibolite and chlorite schist. The complex is penetrated by often strongly sheared granitic rocks, which are assigned to the Mokolian Piksteel and Gamsberg Intrusive Suites (Schalk, pers. comm., 1987). In this area the fold axes of the Mooirivier rocks are north-east trending. Sample collection and preparation" @default.
• W2388409870 created "2016-06-24" @default.
• W2388409870 creator A5050177474 @default.
• W2388409870 creator A5070238111 @default.
• W2388409870 date "1989-01-01" @default.
• W2388409870 modified "2023-09-26" @default.
• W2388409870 title "Report: K-Ar, Rb-Sr and geochemical investigations in the Mooirivier Complex, south-western Windhoek District and north-western Maltahöhe District, Namibia" @default.
• W2388409870 cites W118274581 @default.
• W2388409870 cites W1579725961 @default.
• W2388409870 cites W1624806571 @default.
• W2388409870 cites W1970622170 @default.
• W2388409870 cites W2041348481 @default.
• W2388409870 cites W2119438235 @default.
• W2388409870 cites W2145604970 @default.
• W2388409870 cites W637118092 @default.
• W2388409870 cites W98888394 @default.
• W2388409870 cites W1520616986 @default.
• W2388409870 hasPublicationYear "1989" @default.
• W2388409870 type Work @default.
• W2388409870 sameAs 2388409870 @default.
• W2388409870 citedByCount "0" @default.
• W2388409870 crossrefType "journal-article" @default.
• W2388409870 hasAuthorship W2388409870A5050177474 @default.
• W2388409870 hasAuthorship W2388409870A5070238111 @default.
• W2388409870 hasConcept C112764850 @default.
• W2388409870 hasConcept C119073576 @default.
• W2388409870 hasConcept C122792734 @default.
• W2388409870 hasConcept C127313418 @default.
• W2388409870 hasConcept C149347711 @default.
• W2388409870 hasConcept C166957645 @default.
• W2388409870 hasConcept C169212394 @default.
• W2388409870 hasConcept C171701179 @default.
• W2388409870 hasConcept C17409809 @default.
• W2388409870 hasConcept C205649164 @default.
• W2388409870 hasConcept C26687426 @default.
• W2388409870 hasConcept C2778849375 @default.
• W2388409870 hasConcept C2781297371 @default.
• W2388409870 hasConcept C42796848 @default.
• W2388409870 hasConcept C67236022 @default.
• W2388409870 hasConceptScore W2388409870C112764850 @default.
• W2388409870 hasConceptScore W2388409870C119073576 @default.
• W2388409870 hasConceptScore W2388409870C122792734 @default.
• W2388409870 hasConceptScore W2388409870C127313418 @default.
• W2388409870 hasConceptScore W2388409870C149347711 @default.
• W2388409870 hasConceptScore W2388409870C166957645 @default.
• W2388409870 hasConceptScore W2388409870C169212394 @default.
• W2388409870 hasConceptScore W2388409870C171701179 @default.
• W2388409870 hasConceptScore W2388409870C17409809 @default.
• W2388409870 hasConceptScore W2388409870C205649164 @default.
• W2388409870 hasConceptScore W2388409870C26687426 @default.
• W2388409870 hasConceptScore W2388409870C2778849375 @default.
• W2388409870 hasConceptScore W2388409870C2781297371 @default.
• W2388409870 hasConceptScore W2388409870C42796848 @default.
• W2388409870 hasConceptScore W2388409870C67236022 @default.
• W2388409870 hasLocation W23884098701 @default.
• W2388409870 hasOpenAccess W2388409870 @default.
• W2388409870 hasPrimaryLocation W23884098701 @default.
• W2388409870 hasRelatedWork W1964076011 @default.
• W2388409870 hasRelatedWork W1970177862 @default.
• W2388409870 hasRelatedWork W1981117492 @default.
• W2388409870 hasRelatedWork W2008426652 @default.
• W2388409870 hasRelatedWork W2017660826 @default.
• W2388409870 hasRelatedWork W2033362686 @default.
• W2388409870 hasRelatedWork W2064022126 @default.
• W2388409870 hasRelatedWork W2071883069 @default.
• W2388409870 hasRelatedWork W2076420114 @default.
• W2388409870 hasRelatedWork W2314362395 @default.
• W2388409870 hasRelatedWork W2317254717 @default.
• W2388409870 hasRelatedWork W2319136047 @default.
• W2388409870 hasRelatedWork W2325748159 @default.
• W2388409870 hasRelatedWork W2493602365 @default.
• W2388409870 hasRelatedWork W27084231 @default.
• W2388409870 hasRelatedWork W2783335949 @default.
• W2388409870 hasRelatedWork W2920741246 @default.
• W2388409870 hasRelatedWork W2985929828 @default.
• W2388409870 hasRelatedWork W2998393675 @default.
• W2388409870 hasRelatedWork W2467793916 @default.
• W2388409870 isParatext "false" @default.
• W2388409870 isRetracted "false" @default.
• W2388409870 magId "2388409870" @default.
• W2388409870 workType "article" @default.